MCF5272CVF66J Freescale Semiconductor, MCF5272CVF66J Datasheet - Page 408
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MCF5272CVF66J
Manufacturer Part Number
MCF5272CVF66J
Description
IC MCU 166MHZ 196MAPBGA
Manufacturer
Freescale Semiconductor
Series
MCF527xr
Specifications of MCF5272CVF66J
Core Processor
Coldfire V2
Core Size
32-Bit
Speed
66MHz
Connectivity
EBI/EMI, Ethernet, I²C, SPI, UART/USART, USB
Peripherals
DMA, WDT
Number Of I /o
32
Program Memory Size
16KB (4K x 32)
Program Memory Type
ROM
Ram Size
1K x 32
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
196-MAPBGA
Processor Series
MCF527x
Core
ColdFire V2
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Development Tools By Supplier
NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
Leaded Process Compatible
No
Rohs Compliant
No
Peak Reflow Compatible (260 C)
No
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCF5272CVF66J
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Pulse-Width Modulation (PWM) Module
Summary of the main features include:
18.2
The PWM is a simple free-running counter combined with a pulse-width register and a comparator such
that the output is cleared whenever the counter value exceeds the width register value. When the counter
overflows, or “wraps around,” its value becomes less than or equal to the value of the width register, and
the output is set. With a suitable low-pass filter, the PWM can be used as a digital-to-analog converter.
The width register is double-buffered so that a new value can be loaded for the next cycle without affecting
the current cycle. At the beginning of each period, the value of the width buffer register is loaded into the
width register, which feeds the comparator. This value is used for comparison during the next cycle. The
prescaler contains a variable divider that can reduce the incoming clock frequency by certain values
between 1 and 32768.
18.3
This section describes the registers and control bits in the PWM module. There are three independent
PWM modules, each with its own control and width registers. The memory map for the PWM is shown in
Table
18-2
0x00C0
0x00C4
0x00C8
0x00D0
0x00D4
0x00D8
MBAR
Offset
•
•
•
•
18-1.
Double-buffered width register
Variable-divide prescale
Three independent PWM modules
Byte-wide width register provides programmable duty cycle control
PWM Operation
PWM Programming Model
PWM Pulse-Width Register 0
PWM Pulse-Width Register 1
PWM Pulse-Width Register 2
PWM Control Register 0
PWM Control Register 1
PWM Control Register 2
(PWWD0)
(PWWD1)
(PWWD2)
(PWCR0)
(PWCR1)
(PWCR2)
[31:24]
MCF5272 ColdFire
Table 18-1. PWM Module Memory Map
®
Integrated Microprocessor User’s Manual, Rev. 3
[23:16]
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
[15:8]
Freescale Semiconductor
[7:0]
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